Device for removing tool joint edge burrs of wheel

ABSTRACT

A device for removing tool joint edge burrs of a wheel comprises a frame, a base, first guide rails, a first movable plate, a first ball screw, a longitudinal motor, a transverse motor, second guide rails, a second ball screw, a movable plate II, an electric cylinder, a mobile roller bed, a circle center measuring sensor, an inner bearing, a shaft, a sleeve, guide keys, a hollow shaft, a pyramid cutter, outer cylinders, a left blade, a right blade and the like. The device is configured to simultaneously remove tool joint edge burrs from an outer rim and a cap slot edge and is used for automatic continuous production; by integrating inner and outer burr removing cutters, not only is the space saved, but also inner and outer independent feeding and independent rotation are realized; the inner and outer cutters have higher coaxiality, and the burr removing effect is improved.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority to Chinese Patent Application No.201711476675.3 entitled DEVICE FOR REMOVING TOOL JOINT EDGE BURRS OFWHEEL filed Dec. 29, 2017, which is incorporated herein by reference forall purposes.

FIELD OF THE INVENTION

The present invention relates to the technology field of removing burrfrom a joint between a casting face and a machined face of a wheel, andspecifically, to a device for removing tool joint burrs between acasting face and a machined face at an outer rim and a cap slot edge ofa wheel.

BACKGROUND ART

A full coated wheel having the front not machined has a circle ofcasting and machining face tool joint burrs at both the outer rim andthe cap slot edge after being machined, and the burrs must be removed.With continuous improvement of customer's requirements for productquality, burrs need to be removed. At present, machining of an aluminumalloy wheel is completed by adopting two lathes, i.e., first turning andsecond turning, and such machining process results in coaxialitydeviations between the inner rim and the center hole machined in thefirst procedure and the outer rim and the cap seam allowance machined inthe second procedure. The outer rim, the cap slot edge and the cap seamallowance are all formed by the second turning, so if burrs are desiredto be removed, precision positioning should be implemented by using thecap seam allowance coaxial with the outer rim and the cap slot edge, therotating center of a cutter is superposed with that of a burr part, inthis case, after the burrs are removed, the outer rim and the cap slotcorners are uniform, and the problems of deviation and burr residue aresolved. Based on the current situation, this patent provides anautomatic device for simultaneously removing tool joint edge burrs fromthe outer rim and the cap slot edge.

SUMMARY OF THE INVENTION

The aim of the present invention is to provide a device forsimultaneously removing tool joint edge burrs from an outer rim and acap slot edge, which can be used for automatic continuous production andis novel in structure, accurate, efficient and high in automationdegree.

In order to fulfill the above aim, the technical solution of the presentinvention is as follows:

A device for removing tool joint edge burrs of a wheel comprises aframe, a base, guide rails I, a movable plate I, a ball screw I, alongitudinal motor, a transverse motor, guide rails II, a ball screw II,a movable plate II, an electric cylinder, a mobile roller bed, a circlecenter measuring sensor, a clamping guide rail, a clamping cylinder, aleft sliding plate, a right sliding plate, a gear rack, upright posts,clamping wheels, an inner cylinder, an inner mobile platform, an innermotor, a coupling, an inner bearing, a shaft, a sleeve, guide keys, ahollow shaft, a pyramid cutter, outer cylinders, guide posts, an outermotor, a small gear, a large gear, an outer bearing, a bearing seat, anouter movable plate, a hollow disc, a left blade, a right blade, a rearblade and a front blade.

The base is fixed at the bottom of the frame, the two guide rails I aremounted on the base, the movable plate I is mounted on the guide railsI, the ball screw I is mounted at the bottom of the movable plate I, thelongitudinal motor is fixed on the side of the frame, the output end ofthe longitudinal motor is connected with the ball screw I, andlongitudinal movement of the movable plate I can be controlled via thelongitudinal motor. The transverse motor and the two guide rails II arefixed on the movable plate I, the output end of the transverse motor isconnected with the ball screw II, the movable plate II is mounted on theguide rails II, the bottom of the movable plate II is connected with theball screw II, and transverse movement of the movable plate II can becontrolled via the transverse motor. Both the mobile roller bed and theclamping guide rail are fixed on the movable plate II, the left slidingplate and the right sliding plate are symmetrically mounted on theclamping guide rail and connected with each other via the gear rack, theclamping cylinder is connected with the left sliding plate, the fourupright posts are symmetrically mounted on the left sliding plate andthe right sliding plate, and a clamping wheel is mounted on each uprightpost. The electric cylinder is mounted in the center of the movableplate II, the circle center measuring sensor is mounted at the outputend of the electric cylinder, and the coordinate origin of the system islocated on the center axis of the sensor in an initial state. When awheel enters the mobile roller bed from a fixed transfer roller bed, theclamping cylinder is started to drive the four clamping wheels topreliminarily position and clamp the wheel. Next, the electric cylinderis started to drive a probe of the circle center measuring sensor toenter a cap seam allowance of the wheel, coordinates of the circlecenter of the cap seam allowance are calculated via the coordinateorigin of the system, then the transverse motor is started to drive themovable plate II to transversely compensate the coordinate difference,the longitudinal motor is started to drive the movable plate I tolongitudinally compensate the coordinate difference, the circle centerof the cap seam allowance moves to the coordinate origin of the system,the rotating center of the cutter system is coaxial with the coordinateorigin, the rotating center of the cap seam allowance is superposed withthat of the cutter system after compensation, and because the cap seamallowance is coaxial with the cap slot edge and an outer rim edge of thewheel, the rotating center of the cutter is superposed with that of theburr part by movement compensation of the clamped wheel driven by thetransverse motor and the longitudinal motor. This is a wheel precisionpositioning system.

The inner cylinder is fixed directly above the frame, the output end ofthe inner cylinder is connected with the inner mobile platform, theinner motor is fixed on the inner mobile platform via a mounting rack,the output end of the inner motor is connected with the shaft, and thetail end of the shaft is connected with the 45-degree pyramid cutter forremoving burrs from the cap slot edge. The shaft is matched with theinner bearing, the sleeve is mounted outside the inner bearing, four keyslots are formed in the outer wall of the sleeve, and each of the keyslots is circumferentially spaced 90 degrees from the adjacent keyslots. Four guide key slots are formed in the inner wall of the hollowshaft, each of the guide key slots are circumferentially spaced 90degrees from the adjacent guide key slots, one end of each guide key ismounted on the sleeve, and another end of each guide key is matched witha guide key slot. The outer wall of the hollow shaft is matched with theouter bearing, the outer bearing is mounted in the bearing seat, and thebearing seat is fixed on the outer movable plate. The two outercylinders are fixed on two sides of the upper part of the frame, and theoutput ends of the outer cylinders are connected with the outer movableplate. The outer motor is fixed on the outer movable plate via asupport, the small gear is mounted at the output end of the motor, thesmall gear is matched with the large gear, and the large gear is mountedat the upper end of the hollow shaft. The hollow disc is mounted at thelower end of the hollow shaft, four blades, which are respectively theleft blade, the right blade, the rear blade and the front blade, arearranged on the hollow disc, each of the blades are spaced 90 degreesfrom the adjacent blades, the interior of the blade is a serrated stepcutting edge, and the four blades have an identical rotating center andare used for removing tool joint edge burrs of the outer rim. After thewheel is precisely positioned, the inner cylinder is started to drivethe inner mobile platform to move down, and the sleeve moves down underthe guidance of the guide keys, i.e., the pyramid cutter moves down toan appropriate position according to the height of a cap slot. Next, theouter cylinders are started to drive the outer movable plate to movedown under the guidance of the guide posts; since the bearing seat isfixed on the outer movable plate, the hollow shaft also moves down; andin the down process, the guide keys stop, the guide key slots slide onthe guide keys, and the cutting edges of the blades contact burrs at theouter rim. Then, the inner motor is started, the shaft can be driven todrive the pyramid cutter to rotate, and the tool joint edge burrs areremoved from the edge of the cap slot. The outer motor is started todrive the small gear to rotate, the small gear drives the large gear torotate, the inner wall of the hollow shaft is connected with the sleevevia the guide keys, the sleeve is matched with the inner bearing, andthe outer wall of the hollow shaft is matched with the outer bearing, sowhen the large gear rotates, the combination formed by the hollow shaftand the sleeve also rotates, and does not interfere with the rotatingshaft. The blades are driven to rotate by rotation of the hollow shaft,and the tool joint edge burrs are removed from the outer rim. This is aburr removing cutter system.

By adjusting the descending heights of the pyramid cutter and theblades, tool joint edge burrs of wheels having different cap slotdiameters and different outer diameters can be removed, so theuniversality is wider.

The working process of the device for removing tool joint edge burrs ofthe wheel is: when a wheel enters the mobile roller bed from the fixedtransfer roller bed, the clamping cylinder is started to drive the fourclamping wheels to preliminarily position and clamp the wheel. Next, theelectric cylinder is started to drive the probe of the circle centermeasuring sensor to enter a cap seam allowance of the wheel, coordinatesof the circle center of the cap seam allowance are calculated via thecoordinate origin of the system, then the transverse motor is started todrive the movable plate II to transversely compensate the coordinatedifference, the longitudinal motor is started to drive the movable plateI to longitudinally compensate the coordinate difference, and therotating center of the cutter is superposed with that of the burr partafter compensation. After the wheel is precisely positioned, the innercylinder is started to drive the pyramid cutter to move down to anappropriate position. Next, the outer cylinders are started to drive thefour blades to move down to appropriate positions. Then, the inner motoris started to drive the pyramid cutter to rotate to remove tool jointedge burrs from the cap slot edge, and the outer motor is started todrive the four blades to rotate to remove tool joint edge burrs from theouter rim.

The present invention can be used for simultaneously removing tool jointedge burrs from the outer rim and the cap slot edge and used forautomatic continuous production; by integrating inner and outer burrremoving cutters, not only is the space saved, but also inner and outerindependent feeding and independent rotation are realized; the inner andouter cutters have higher coaxiality, and the burr removing effect isbetter; and the device is novel in structure, accurate, efficient andhigh in automation degree.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of a device for removing tool joint edge burrs ofa wheel in the present invention;

FIG. 2 is a left view of the device for removing tool joint edge burrsof the wheel in the present invention;

FIG. 3 is a top view of the device for removing tool joint edge burrs ofthe wheel in the present invention; and

In which, 1—frame, 2—base, 3—guide rail I, 4—movable plate I, 5—ballscrew I, 6—longitudinal motor, 7—transverse motor, 8—guide rail II,9—ball screw II, 10—movable plate II, 11—electric cylinder, 12—mobileroller bed, 13—circle center measuring sensor, 14—clamping guide rail,15—clamping cylinder, 16—left sliding plate, 17—right sliding plate,18—gear rack, 19—upright post, 20—clamping wheel, 21—inner cylinder,22—inner mobile platform, 23—inner motor, 24—coupling, 25—inner bearing,26—shaft, 27—sleeve, 28—guide key, 29—hollow shaft, 30—pyramid cutter,31—outer cylinder, 32—guide post, 33—outer motor, 34—small gear,35—large gear, 36—outer bearing, 37—bearing seat, 38—outer movableplate, 39—hollow disc, 40—left blade, 41—right blade, 42—rear blade,43—front blade.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Specific details and working conditions of a device provided by thepresent invention will be described below in combination with theaccompanying drawings.

A device for removing tool joint edge burrs of a wheel comprises a frame1, a base 2, guide rails I 3, a movable plate I 4, a ball screw I 5, alongitudinal motor 6, a transverse motor 7, guide rails II 8, a ballscrew II 9, a movable plate II 10, an electric cylinder 11, a mobileroller bed 12, a circle center measuring sensor 13, a clamping guiderail 14, a clamping cylinder 15, a left sliding plate 16, a rightsliding plate 17, a gear rack 18, upright posts 19, clamping wheels 20,an inner cylinder 21, an inner mobile platform 22, an inner motor 23, acoupling 24, an inner bearing 25, a shaft 26, a sleeve 27, guide keys28, a hollow shaft 29, a pyramid cutter 30, outer cylinders 31, guideposts 32, an outer motor 33, a small gear 34, a large gear 35, an outerbearing 36, a bearing seat 37, an outer movable plate 38, a hollow disc39, a left blade 40, a right blade 41, a rear blade 42 and a front blade43.

The base 2 is fixed at the bottom of the frame 1, the two guide rails I3 are mounted on the base 2, the movable plate I 4 is mounted on theguide rails I 3, the ball screw I 5 is mounted at the bottom of themovable plate I 4, the longitudinal motor 6 is fixed on the side of theframe 1, the output end of the longitudinal motor 6 is connected withthe ball screw I 5, and longitudinal movement of the movable plate I 4can be controlled via the longitudinal motor 6. The transverse motor 7and the two guide rails II 8 are fixed on the movable plate I 4, theoutput end of the transverse motor 7 is connected with the ball screw II9, the movable plate II 10 is mounted on the guide rails II 8, thebottom of the movable plate II 10 is connected with the ball screw II 9,and transverse movement of the movable plate II 10 can be controlled viathe transverse motor 7. Both the mobile roller bed 12 and the clampingguide rail 14 are fixed on the movable plate II 10, the left slidingplate 16 and the right sliding plate 17 are symmetrically mounted on theclamping guide rail 14 and connected with each other via the gear rack18, the clamping cylinder 15 is connected with the left sliding plate16, the four upright posts 19 are symmetrically mounted on the leftsliding plate 16 and the right sliding plate 17, and a clamping wheel 20is mounted on each upright post 19. The electric cylinder 11 is mountedin the center of the movable plate II 10, the circle center measuringsensor 13 is mounted at the output end of the electric cylinder 11, andthe coordinate origin of the system is located on the center axis of thesensor in an initial state. When a wheel enters the mobile roller bed 12from a fixed transfer roller bed, the clamping cylinder 15 is started todrive the four clamping wheels 20 to preliminarily position and clampthe wheel. Next, the electric cylinder 11 is started to drive a probe ofthe circle center measuring sensor 13 to enter a cap seam allowance ofthe wheel, coordinates of the circle center of the cap seam allowanceare calculated via the coordinate origin of the system, then thetransverse motor 7 is started to drive the movable plate II 10 totransversely compensate the coordinate difference, the longitudinalmotor 6 is started to drive the movable plate I 4 to longitudinallycompensate the coordinate difference, the circle center of the cap seamallowance moves to the coordinate origin of the system, the rotatingcenter of the cutter system is coaxial with the coordinate origin, therotating center of the cap seam allowance is superposed with that of thecutter system after compensation, and because the cap seam allowance iscoaxial with the cap slot edge and the outer rim edge, the rotatingcenter of the cutter is superposed with that of the burr part bymovement compensation of the clamped wheel driven by the transversemotor 7 and the longitudinal motor 6. This is a wheel precisionpositioning system.

The inner cylinder 21 is fixed directly above the frame 1, the outputend of the inner cylinder 21 is connected with the inner mobile platform22, the inner motor 23 is fixed on the inner mobile platform 22 via amounting rack, the output end of the inner motor 23 is connected withthe shaft 26, and the tail end of the shaft 26 is connected with the45-degree pyramid cutter 30 for removing burrs from the cap slot edge.The shaft 26 is matched with the inner bearing 25, the sleeve 27 ismounted outside the inner bearing 25, four key slots are formed in theouter wall of the sleeve 27, and each of the key slots iscircumferentially spaced 90 degrees from the adjacent key slots. Fourguide key slots are formed in the inner wall of the hollow shaft 29,each of the guide key slots is circumferentially spaced 90 degrees fromthe adjacent guide key slots, one end of each guide key 28 is mounted onthe sleeve 27, and another end of each guide key 28 is matched with aguide key slot. The outer wall of the hollow shaft 29 is matched withthe outer bearing 36, the outer bearing 36 is mounted in the bearingseat 37, and the bearing seat 37 is fixed on the outer movable plate 38.The two outer cylinders 31 are fixed on two sides of the upper part ofthe frame 1, and the output ends of the outer cylinders 31 are connectedwith the outer movable plate 38. The outer motor 33 is fixed on theouter movable plate 38 via a support, the small gear 34 is mounted atthe output end of the motor, the small gear 34 is matched with the largegear 35, and the large gear 35 is mounted at the upper end of the hollowshaft 29. The hollow disc 39 is mounted at the lower end of the hollowshaft 29, four blades, which are respectively the left blade 40, theright blade 41, the rear blade 42 and the front blade 43, are arrangedon the hollow disc 39, each of the blades is spaced 90 degrees from theadjacent blades, the interior of the blade is a serrated step cuttingedge, and the four blades have an identical rotating center and are usedfor removing tool joint edge burrs of the outer rim. After the wheel isprecisely positioned, the inner cylinder 21 is started to drive theinner mobile platform 22 to move down, and the sleeve 27 moves downunder the guidance of the guide keys 28, i.e., the pyramid cutter 30moves down to an appropriate position according to the height of a capslot. Next, the outer cylinders 31 are started to drive the outermovable plate 38 to move down under the guidance of the guide posts 32;since the bearing seat 37 is fixed on the outer movable plate 38, thehollow shaft 29 also moves down; and in the down process, the guide keys28 stop, the guide key slots slide on the guide keys 28, and the cuttingedges of the blades contact burrs at the outer rim. Then, the innermotor 23 is started, the shaft 26 can be driven to drive the pyramidcutter 30 to rotate, and the tool joint edge burrs are removed from theedge of the cap slot. The outer motor 33 is started to drive the smallgear 34 to rotate, the small gear 34 drives the large gear 35 to rotate,the inner wall of the hollow shaft 29 is connected with the sleeve 27via the guide keys 28, the sleeve 27 is matched with the inner bearing25, and the outer wall of the hollow shaft 29 is matched with the outerbearing 36, so when the large gear 35 rotates, the combination formed bythe hollow shaft 29 and the sleeve 27 also rotates, and does notinterfere with the rotating shaft 26. The blades are driven to rotate byrotation of the hollow shaft 29, and the tool joint edge burrs areremoved from the outer rim. This is a burr removing cutter system.

By adjusting the descending heights of the pyramid cutter and theblades, tool joint edge burrs of wheels having different cap slotdiameters and different outer diameters can be removed, so theuniversality is wider.

The working process of the device for removing tool joint edge burrs ofthe wheel is as follows: when a wheel enters the mobile roller bed 12from the fixed transfer roller bed, the clamping cylinder 15 is startedto drive the four clamping wheels 20 to preliminarily position and clampthe wheel. Next, the electric cylinder 11 is started to drive the probeof the circle center measuring sensor 13 to enter a cap seam allowanceof the wheel, coordinates of the circle center of the cap seam allowanceare calculated via the coordinate origin of the system, then thetransverse motor 7 is started to drive the movable plate II 10 totransversely compensate the coordinate difference, the longitudinalmotor 6 is started to drive the movable plate I 4 to longitudinallycompensate the coordinate difference, and the rotating center of thecutter is superposed with that of the burr part after compensation.After the wheel is precisely positioned, the inner cylinder 21 isstarted to drive the pyramid cutter 30 to move down to an appropriateposition. Next, the outer cylinders 31 are started to drive the fourblades to move down to appropriate positions. Then, the inner motor 23is started to drive the pyramid cutter 30 to rotate to remove tool jointedge burrs from the cap slot edge, and the outer motor 33 is started todrive the four blades to rotate to remove tool joint edge burrs from theouter rim.

The present invention can be used for simultaneously removing tool jointedge burrs from the outer rim and the cap slot edge and used forautomatic continuous production; by integrating inner and outer burrremoving cutters, not only is the space saved, but also inner and outerindependent feeding and independent rotation are realized; the inner andouter cutters have higher coaxiality, and the burr removing effect isbetter; and the device is novel in structure, accurate, efficient andhigh in automation degree.

1. A device for removing tool joint edge burrs of a wheel, comprising aframe, a base, first guide rails, a first movable plate, a first ballscrew, a longitudinal motor, a transverse motor, second guide rails, asecond ball screw, a second movable plate, an electric cylinder, amobile roller bed, a circle center measuring sensor, a clamping guiderail, a clamping cylinder, a left sliding plate, a right sliding plate,a gear rack, upright posts, clamping wheels, an inner cylinder, an innermobile platform, an inner motor, a coupling, an inner bearing, a shaft,a sleeve, guide keys, a hollow shaft, a pyramid cutter, outer cylinders,guide posts, an outer motor, a small gear, a large gear, an outerbearing, a bearing seat, an outer movable plate, a hollow disc, a leftblade, a right blade, a rear blade and a front blade; wherein the shaftis matched with the inner bearing, the sleeve is mounted outside theinner bearing, four key slots are formed in the outer wall of thesleeve, and each of the key slots is circumferentially spaced 90 degreesfrom the adjacent key slots; four guide key slots are formed in theinner wall of the hollow shaft, each of the guide key slots iscircumferentially spaced 90 degrees from the adjacent guide key slots,one end of each guide key is mounted on the sleeve, and another end ofeach guide key is matched with a guide key slot; the outer wall of thehollow shaft is matched with the outer bearing, the outer bearing ismounted in the bearing seat, and the bearing seat is fixed on the outermovable plate; and wherein the inner motor drives the shaft to drive thepyramid cutter to rotate, and tool joint edge burrs are removed from theedge of a cap slot; the outer motor drives the small gear to rotate, thesmall gear drives the large gear to rotate, and when the large gearrotates, the combination formed by the hollow shaft and the sleeve alsorotates, and does not interfere with the rotating shaft; and the bladesare driven to rotate by rotation of the hollow shaft, and tool jointedge burrs are removed from an outer rim of the wheel.